Electronics & Semiconductors
Solar-driven photocatalytic or photoelectrochemical water splitting holds great promise for direct solar-to-hydrogen energy conversion, especially in the context of the carbon-neutral initiative, while its practical applications ...
Feb 28, 2024
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Business
Taiwanese computer chip giant TSMC announced Friday it will spend $12 billion on a state-of-the-art semiconductor foundry in the United States, creating thousands of jobs.
May 15, 2020
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9
Business
China has poured more than $47 billion into the country's largest-ever chip investment fund, a business database showed on Monday, as Beijing seeks self-sufficiency in the crucial semiconductor manufacturing sector.
May 27, 2024
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Electronics & Semiconductors
Quantum science has the potential to revolutionize modern technology with more efficient computers, communication, and sensing devices. Challenges remain in achieving these technological goals, however, including how to precisely ...
Jan 31, 2023
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Business
Micron will reduce its workforce by 10% next year and take other cost-cutting measures as the computer memory chip maker struggles to deal with too much supply amid a drop in demand.
Dec 22, 2022
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Engineering
Electronics engineers and materials scientists have been trying to identify materials that could help to boost the performance of electronics further, overcoming the inherent limitations of silicon-based transistors. Two-dimensional ...
Engineering
(Tech Xplore)—A surgeon diagnosed his own cancer with the help of a phone. That is the attention-grabbing line that has turned people's attention to a new device to ship next year. It is the Butterfly iQ, a portable ultrasound ...
Machine learning & AI
A disordered network that is capable of detecting ordered patterns: This sounds contradictory, but it comes close to describing the way the brain works. Researchers of the University of Twente have developed a such brain-inspired ...
Jan 16, 2020
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Engineering
A recent study, affiliated with South Korea's Ulsan National Institute of Science and Technology (UNIST) has reported a scalable synthetic strategy to fabricate low-resistance edge contacts to atomic transistors using a thermally ...
Nov 23, 2022
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Electronics & Semiconductors
For decades, there has been a trend in microelectronics towards ever smaller and more compact transistors. 2D materials such as graphene are seen as a beacon of hope here: they are the thinnest material layers that can possibly ...
Mar 9, 2021
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A semiconductor is a material that has a resistivity value between that of a conductor and an insulator. The conductivity of a semiconductor material can be varied under an external electrical field. Devices made from semiconductor materials are the foundation of modern electronics, including radio, computers, telephones, and many other devices. Semiconductor devices include the transistor, solar cells, many kinds of diodes including the light-emitting diode, the silicon controlled rectifier, and digital and analog integrated circuits. Solar photovoltaic panels are large semiconductor devices that directly convert light energy into electrical energy. In a metallic conductor, current is carried by the flow of electrons. In semiconductors, current can be carried either by the flow of electrons or by the flow of positively-charged "holes" in the electron structure of the material.
Silicon is used to create most semiconductors commercially. Dozens of other materials are used, including germanium, gallium arsenide, and silicon carbide. A pure semiconductor is often called an “intrinsic” semiconductor. The conductivity, or ability to conduct, of semiconductor material can be drastically changed by adding other elements, called “impurities” to the melted intrinsic material and then allowing the melt to solidify into a new and different crystal. This process is called "doping".
This text uses material from Wikipedia, licensed under CC BY-SA
